laboring怎么读

laboring

['leɪbərɪŋ]

n.劳动，操劳;

v.努力争取(for)( labor的现在分词 );苦干;详细分析;（指引擎）缓慢而困难地运转;

例句:

1、

James Watt spent 20 years laboring to perfect his steam engine.

詹姆斯瓦特用了二十年工夫来改善他发明的蒸汽引擎.

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2、

The laboring classes migrated to town from rural districts.

劳动阶级自农村移往城市.

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3、

Laboring muscles burn oxygen rapidly and pour out waste carbon dioxide.

劳动着的肌肉能迅速燃烧氧气,放出废料二氧化碳.

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